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| D3 - Lights Headlights, xenons, foglights. Everything outside the car that glows |
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#1
12th July 2015, 04:47 PM
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Brake light out warning lamp
Hey everybody!
I'm new to the forum - and A8 (D3 2003 mod). Yesterday I had a Brake light burned out warning - which went away. Today it was back See attachment. I took the time to verify wether one light was out or not - but all brake lights work as they should. Ignition on and off - and the warning is gone. Has anyone git exoerience with this "gremlins"? Best regards from Norway 
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#2
12th July 2015, 04:59 PM
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Welcome to the forum
 This may be a bad earth situation - have you scanned the car with a diagnostic cable? This may point towards the fault. It may also be a bad earth on a brake wear indicator cable or a breakdown in the cable itself somewhere along its length.
__________________
Confidence is the feeling you have before you know better . . . .  Audi A8 D2 3.7 Quattro Sport 1999 FL - Melange 2nd Place Winner - A8-Freunde Annual German Meet 2012 at Edersee 20" x 9" Bentley GTC Wheels with 385mm W12 Front Discs & Bentley Caliper Covers, Front Lowered on Coilovers, Xenons, Combined DRLs and LED Foglights to modified OEM front fog lamp position, Alcantara/Leather, Full Black Alcantara headlining + pillars and blind shelf, Bespoke Flat Bottomed Sports Steering Wheel, Dark Myrtle Wood, Autodim Mirrors, Bose, Blinds, Digital TV, Ski Hatch, Modified rear exhaust section for extra V8 Burble  Audi S8 D2 Final Edition 2002, Avus Silver with Red Leather Interior Tiptronic with Sport mode button, Sony rear entertainment package, Bose sound system, Audi Navigation Plus, 20 inch Final Edition alloys, Full Cat Back Stainless Milltek exhaust, giving a great V8 burble Audi A8L D2 4.2 Petrol with LPG - Ebony Black Audi A8L D4 FL 4.0T Petrol twin turbo - Havana Black Audi A2 1.6 FSi Sport - Dolphin Grey with Votex body kit and Red Leather Interior and some other A8's A8L's and Mercs
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#3
12th July 2015, 10:13 PM
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Quote:
Yes I performed a scan with my vcds cable, but did not get a good tip.... what section should a taillight fault sort under? The only section I could find with regards to exterior lights was the one for headlight range - and that's pretty far off track... I'll have a quick look at the wiering sometime this week. pellesin
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#4
12th July 2015, 10:17 PM
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I've had this happen on a D2 and nothing shows on VCDS because it's a simple circuit straight to the cluster. No idea if D3 is the same.
Mine was, I think, just down to dirty contacts on the bulb and a bit of damp weather. Took it out cleaned the bulb and socket and put it back and never had a problem since. 
__________________
2003 D2 FL S8. Irish Green Pearl/Beige. Solar sunroof, auto-dim mirrors, electric rear seat functions and extended leather. Ski hatch retrofit. Aftermarket reversing camera. DVB-T and XCarlink now removed as redundant. 2016 Volvo V40 T5 Cross Country (4WD) with ALL the toys including adaptive cruise etc. etc. Osmium Grey with Blonde/Charcoal leather interior. Polestar performance "optimisation". (Even rarer than a D2 S8!) Oh, and a brand new engine at just under 30,000 miles on the factory one!  Finally: gone, but not forgotten..... 1998 D2 PF S8. Agate Grey/Platinum. Every option (I think) except electric rear seats, Tiptronic steering wheel, ski hatch, towbar & dimming door mirrors. e.g. Cruise control, NavPlus/TV, Bose, GSM, Xenons, Solar roof, Parking sensors, Alcantara/leather everywhere of course. (internal dimming mirror added later)1998 (very early) Ford Focus 1.8 Zetec; ABS/TCS, Heated screen/mirrors, Aircon. Added Auto-dim mirror, Leather seats, Trip computer, Cruise control, OEM Ford SatNav with CD changer. And before that a lot of Rover 800s, a few oddities, a lovely Triumph Dolomite 1850HL with Overdrive and way back in my schooldays an Austin Seven aka Mini 850! 
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#5
13th July 2015, 06:34 AM
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The bulb failure light is not just for brake lights, its for any external light on the D3 except the number plate lights.
The brake lights are multiple LEDs, so if you check them and they are all working then I'd be looking elsewhere at the foglights, reversing lights and front sidelight bulbs.
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Manny 2004 A4 1.8T Sport Cabriolet, 89K Miles Past 2004 D3 A8 3.7 Quattro, Xenon, Bose, Blinds, Solar Sunroof, TV, ACC, phone and almost every option. 168K miles rising slowly with retrofit AMI and DVB-T in place of Analogue 2003 Volvo S60 D5 SE Manual, 197K miles. 2001 D2 A8 3.7 QS, Bi-Xenon, Bose, Blinds, Electric Everything, retrofitted RNS-D, 191K Miles
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#6
13th July 2015, 08:42 AM
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In the D3 (2004) I recently had, there was a bulb out warning every time the right indicator was used. The DIS showed the bulb out warning followed by a birds eye view of the car with the o/s/r light cluster highlighted to show where the fault was coming from.
Practically all the LEDs were gone and the remaining ones were very dim, but yours may just need the contacts cleaning...
__________________
Currently '8-less Previously: - Aqua Blue Pearl D3 S8 - Kamut Beige leather, ACC, B&O, factory RSE, solar sunroof, electric blinds, ski bag, Homelink, comfort headrests. - Aqua Blue D2 S8 - Grey leather/Alcantara - D3 A8 3.0 CVT - D3 3.7 V8
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#7
13th July 2015, 09:19 AM
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Tusen takk
Welcome to the forum.
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Ray at Wigan Pier 2014 A8L D4 4.0TFSI Gold (Sticker says "Beige") Can't leave you in a black smoke cloud anymore.. In progress, Nothing left to do.  Gone 2004 A8 D3 3.0 TDI. Ebony Pearl Black (with little bits of other colours and glitter)
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#8
13th July 2015, 10:20 AM
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Another thing to consider, assuming we're talking about an incandescent bulb here, is that filaments can partially fail and make/break, causing an intermittent fault; I've had numerous bulbs do this. Usually, if left long enough, the filament will fail completely.
If you know which bulb it is, probably best to just replace it, but take out the existing bulb and examine the filament. Sometimes, if you give the bulb a gentle flick, the filament will beak apart, even if it isn't noticeably damaged. ... and welcome, by the way! 
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Mark ------------------------------------------------------ 2002 FE S8 Ebony Black Pearl ------------------------------------------------------  ------------------------------------------------------ Cars Owned: The Tesla Era: 2020 Model S Performance Ludicrous+ (present) (Black, with all black premium interior and carbon fibre décor, 21" sonic carbon twin turbine wheels and FSD capability) The Audi Era: '97 A8 4.2 (Ming Blue) --> '96 A8 4.2 QS (Dark Green) --> '02 FE S8 (present) The Citroen Era: '84 BX 1.6 RS --> '89 BX 1.9 DTR Turbo --> '94 XM 2.0L Turbo --> '96 XM 2.0L Turbo Exclusive --> '00 Xantia Activa 2.0L Turbo The Banger Era: '76 1.2L Lada VAZ-2101 (Ruski Fiat 124) --> '80 1.7L Morris Ital HL, finished in Ermine White and Rust
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#9
13th July 2015, 10:28 AM
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A bit dissapointing that the D3 (atleast before facelift) isn' t clever enough to tell which bulb/light it doesn't "like" Pellesin
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#10
13th July 2015, 10:31 AM
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Only incandescent bulbs on a D3 at the rear are the reversing bulbs and fog light bulbs as well as number plate bulbs. All others should be LED.
__________________
Currently '8-less Previously: - Aqua Blue Pearl D3 S8 - Kamut Beige leather, ACC, B&O, factory RSE, solar sunroof, electric blinds, ski bag, Homelink, comfort headrests. - Aqua Blue D2 S8 - Grey leather/Alcantara - D3 A8 3.0 CVT - D3 3.7 V8
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